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73-87 Chevy _ GMC Trucks => 73-87 Chevy & GMC Trucks => Topic started by: El Guapo on February 15, 2008, 12:37:06 pm

Title: A/c compreesor switch or non-switch type?
Post by: El Guapo on February 15, 2008, 12:37:06 pm

How can I tell?  It's an R4 compressor on an '84 Scottsdale.  Any help would be appreciated ???

Title: Re: A/c compreesor switch or non-switch type?
Post by: VileZambonie on February 15, 2008, 04:57:21 pm

What's it look like and what's the sticker on it say? What do you mean switch or non switch?

Title: Re: A/c compreesor switch or non-switch type?
Post by: VileZambonie on February 15, 2008, 05:21:08 pm

Just to add the R4 is radial, it's short and fat. The A6 is axial and is long and skinny.

Title: Re: A/c compreesor switch or non-switch type?
Post by: El Guapo on February 17, 2008, 01:01:51 pm

Yeah, it's short and fat.  I'm trying to locate a replacement, but everyone asks me if it's a switch type or non-switch type.  I really don't know what that even means -

Title: Re: A/c compreesor switch or non-switch type?
Post by: VileZambonie on February 17, 2008, 03:42:12 pm

They must be talking about the high pressure switch. Do you have the old compressor? If you look on the back of the compressor there will be a connector sticking out of the back.

Title: Re: A/c compreesor switch or non-switch type?
Post by: El Guapo on February 18, 2008, 02:40:49 pm

I'll check it tonight -  So, if I have a connector on the back it's a switch type?

Title: Re: A/c compreesor switch or non-switch type?
Post by: VileZambonie on February 18, 2008, 07:33:06 pm

What's the part # on your existing compressor?

Look at page 220

http://www.meicorporation.com/pdfs/Comp07.pdf

Title: Re: A/c compreesor switch or non-switch type?
Post by: El Guapo on February 19, 2008, 12:10:46 pm

Couldn't locate the old compressor, but it looks like it must be a switch type.  The v-belt compresssors only came with a high-pressure switch if I'm reading the chart correctly.

Title: Re: A/c compreesor switch or non-switch type?
Post by: El Guapo on February 21, 2008, 12:10:14 pm

So wwhat does the switch look like?  I found the old compressor... it is just a little 3/4 " plu looking thisng with a hole in the end containing a spring?

Title: Re: A/c compreesor switch or non-switch type?
Post by: VileZambonie on February 21, 2008, 04:34:17 pm

that sounds like a blow off valve. What's the part # on the tag?

Title: Re: A/c compreesor switch or non-switch type?
Post by: El Guapo on February 21, 2008, 05:25:18 pm

It says Harrison model # 1131198.

Title: Re: A/c compreesor switch or non-switch type?
Post by: VileZambonie on February 21, 2008, 09:38:58 pm

What's wrong with yours by the way? I checked with my vendor and they said they end up superceding each other anyway so just go with switch type. Here's a used ebay one http://cgi.ebay.com/ebaymotors/80-81-82-83-84-85-86-87-GM-CHEVY-A-C-COMPRESSOR-1131198_W0QQitemZ220190822171QQcmdZViewItem

Title: Re: A/c compreesor switch or non-switch type?
Post by: El Guapo on February 22, 2008, 09:25:47 am

Not sure what's wrong with mine.  It puked oil all over everything and stopped working back in August (when it was 95+ degrees in NC) -

I'm looking for a new one, and the non-switch type is much less expensive ($50 or so)  Looks like mine does not have a switch on it, or I can't find one -  The only thing I see is the valve on the back with the spring -